Herman w



H. 'W. WINANS. Steam Packing.

No. 239,287. PatentedMarch 22,118 81.

(No Model.)

V fim $6 N PETEfls. PNOTO-LITHDGRAPHER, WASHINGTON. n. c

HERMAN w. WINANS,

PATENT OFFICE.

OF NEW YORK, N. Y.

STEAM PACKING.

SPECIFICATION forming part of Letters Patent No. 239,287, dated March22, 1881.

Application filed September 18, 1880. (N0 model.)

To all whom 'it may concern:

Be it known that I, HERMAN W. WINANS, a citizen of the United States,residing in the city and county of New York, in the State of New York,have invented certain new and useful Improvements Relating toSteam-Packing and I do hereby declare that the following is a full andexact description thereof.

It is highly desirable to produce packing of fibrous material ofrectangular section. It is also desirable to inclose within suchrectangular packing a quantity of rubber, which will contribute, withthe elasticity of thefiber itself, to give a proper resilient characterto the packing. I have attained both these conditions.

In my patent dated August 19, 1879, No.

218,804., I have set forth that the braid is braided in asquare'section. I have now, by repeated experiments, attained a valuableimprovement in the means of producing such. I braid the material manytimes over, braiding on each time a thin layer of fiber. I work instraight yarns, of the same or slightly different material, in thecourse of the braiding, which straight yarns aid to fill out thecorners. The result is a very homogeneous mass, which is very square incross-section, and which manifests no disposition, like ordinarypacking, to assume a circular form. I can work the fiber alone withadvantage, the spaces being properly filled with grease; but I prefer tomake the packing with a center of soft vulcanized rubber. I introducethe vulcanized rubber in the braiding-machine, and braid on thesubsequent layers one by one, each time introducing four straight yarnsat the lines which are to form the corners of the packing.

The accompanying drawings form a part of this specification.

Figure 1 is a cross-section, showing a solid square rubber center piece.Fig. 2 is a like section, showing a center composed of several parts.

Similar letters of reference indicate like parts in all the figures.

Ais the core, of india-rubber. B is the first layer of braid. O is thesecond layer; D, the third, and E the fourth. The yarns, which areintroduced in the corners under each layer, are marked m.

The maohinery by which the operation is conducted may be the ordinarymachine for braiding round braid, but equipped with four guidesleadingadditional strands of the fibrous material into the interior of thebraid, and presenting them in the proper positions to form four cornersof the square-sectioned braid.

The manufacture of my packing will be easy with this amount ofdescription.

Modifications may be made. The number of layers of the braid B O I) maybe increased or diminished. Some portion of the advantage of theinvention may be realized by using only one thick layer and one set ofcornerstrands. The straight yarns on may be of the same size and of thesame material, or of a different size and material. The rubber core A,instead of being of square section, may be round, or of various othersection. The rubber core may be omitted altogether, and a bunch ofstraight strands or yarns run in the middle instead. However made, thefibers should be liberally filled with beef-tallow, or other suitablegreasy material, before the packing is introduced into a stuffing-box.ln applying it the lengths may be cut oft to just. the proper length andbent around, so that the ends shall abut together. Thus conditioned thepacking is forced down in the stufiing-box. The lengths may be cut off alittle obliquely without disadvantage.

I claim as my invention in stea1n-pa-cking-- 1. A stuffing-box packingof square section, having a series of layers of fibrous material, wovenor braided, one exterior to the other, with longitudinal cords orstrands extending along the corners, as and for the purposes hereinspecified.

2. The packing described, having a rubber core, A, a series of separatelayers of braided fibrous material, B O D, exterior thereto, and withyarns on extending longitudinally in the corners, as herein specified.

In testimony whereof I have hereunto set my hand, atNewYork city,NewYork, this 15th day of September, 1880, in the presence of twosubscribing witnesses.

HERMAN W. WINANS.

Witnesses:

WALTER W. MonTAeUE, JOHN HENRY.

